Saesneg: 1 year rolling average

Rhan ymadrodd

Enw, Gwrywaidd, Unigol

Diffiniad

A 12-month rolling average, or moving average, is simply a series of 12-month averages over multiple consecutive 12-month periods.

Nodiadau

Defnyddir y term Saesneg “moving average” hefyd ar gyfer yr un cysyniad ystadegol. Nid “y cyfartaledd dros flwyddyn dreigl” yw’r ystyr.